Halliday Jackson papers (HC.MC.950.101), Quaker & Special Collections, Haverford College, Haverford, PA.
Halliday Jackson papers (HC.MC.950.101), Quaker & Special Collections, Haverford College, Haverford, PA. https://archives.tricolib.brynmawr.edu//repositories/5/resources/1299 Accessed February 17, 2025.
